EXTRACTS FROM GERMAN PERIODICALS. 
v 577 
istration of some irritating medicine. The first horse suffered 
from colic, and died of stomachic rupture ; autopsy displayed 
the lining membrane, and that of the pharynx to have been 
cauterized by the destructive action of the medicament. 
A second animal that had received the same treatment, 
and which was suffering from indigestion, perished on the 
twelfth day under the appearance of intense pain. 
M. attributes the fatal pneumonia in this case to be the 
sequelae of the entrance of the ammonia into the trachea. 
The general opinion of the conference at which these cases 
• were reiterated, is that aq. ammonia is of questionable aid as 
an internal remedy in our domestic animals. Berl. T. Wochen- 
schrift. 
LOCALIZATION OF HYDROPHOBIA VIRUS. 
In several fatal cases of rabies, Wissokowicz expeiimented 
with the liquor cerebro-spinalis in regard to its virulence. In 
each case the result has been negative ; on the eontiaiy, every 
case in which the emulsion of the spinal cord had been inocu¬ 
lated, the animals used in the tests—rabbits succumbed with 
symptoms of typical hydrophobia. 
! The author considers this very tangible evidence that 
rabies is dependent upon a micro-organism which requiies foi 
its propagation conditions and material to be found only along 
the track of the nerves and in nerve cells. 
This, moreover, further elucidates why, in numerous in¬ 
stances, subcutaneous or intravenous injections of prepara¬ 
tions of the virus have not induced hydrophobia. Centr. fur 
Bacteriol. u. Parasit. Bet . ix. 
PERFORATION OF THE POSTERIOR VENA CAVA. 
The postmortem of a seven-year-old Holland cow that be¬ 
came suddenly ill under symptoms of dyspnoea, and was 
slaughtered in order that the meat remain eatable, disclosed 
the following lesions : 
In the right lobe of the liver, directly in that locality upon 
